The disappearance of conscious personality and the turning of feelings and thoughts in a definite direction, which are the primary characteristics of a crowd about to become organised, do not always involve the simultaneous presence of a number of individuals on one spot. Thousands of isolated individuals may acquire at certain moments, and under the influence of certain violent emotions–such, for example, as a great national event–the characteristics of a psychological crowd.
It will be sufficient in that case that a mere chance should bring them together for their acts to at once assume the characteristics peculiar to the acts of a crowd. At certain moments half a dozen men might constitute a psychological crowd, which may not happen in the case of hundreds of men gathered together by accident. On the other hand, an entire nation, though there may be no visible agglomeration, may become a crowd under the action of certain
A psychological crowd once constituted, it acquires certain provisional but determinable general characteristics. To these general characteristics there are adjoined particular characteristics which vary according to the elements of which the crowd is composed, and may modify its mental constitution. Psychological crowds, then, are susceptible of classification; and when we come to occupy ourselves with this matter, we shall see that a heterogeneous crowd–that is, a crowd composed of dissimilar elements–presents certain characteristics in common with homogeneous crowds–that is, with crowds composed of elements more or less akin (sects, castes, and classes)–and side by side with these common characteristics particularities which permit of the two kinds of crowds being differentiated.